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How to automatically reload a page after a given period of inactivity
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Hero! This is perfect thanks. I have my PHP sessions set to expire after an hour, and this is set to refresh a little over an hour. I think this should accomplish the logout after inactivity functionality i'm after.
– Tspesh
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Simple calculations for working with lat/lon and km distance?
...long coordinates are expressed in degrees, while the cos function in most (all?) languages typically accepts radians, therefore a degree to radians conversion is needed.
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Converting newline formatting from Mac to Windows
... OSX uses older version of sed. I use Homebrew for OSX, and installed gnu-sed. You use with the "gsed" command instead of "sed". That works.
– John
Nov 11 '13 at 23:01
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How to find out element position in slice?
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this does not find the original index; rather it loses all the indexes by re-ordering them
– newacct
Nov 29 '11 at 20:16
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Inject service in app.config
...e into app.config, so that data can be retrieved before the controller is called. I tried it like this:
10 Answers
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MySQL 启动报错 Table \'mysql.plugin\' doesn\'t exist - 数据库(内核) -...
...:14 mysqld_safe mysqld from pid file /opt/szy/data/mysqldevdb03.pid ended
问题分析：
这是执行scripts/mysql_install_db --user=mysql没有成功的原因，没有一个初始化数据库，不能启动mysql守护进程
解决办法：
执行如下语句
./scripts/mysql_install_db --use...
一致性hash和solr千万级数据分布式搜索引擎中的应用 - 大数据 & AI - 清泛...
...多数情况都选择横向扩展的方式。如下图：
现在有个问题了，这600个数据如何路由到对应的机器。需要考虑如果均衡分配，假设我们600个数据都是统一的自增id数据，从1~600，分成3堆可以采用 id mod 3的方式。其实在真实环境可...
TortoiseSVN允许修改日志的方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ies are allowed. >&2
goto ERROR_EXIT
:ERROR_EXIT
exit 1
但存在一个问题：强制设定commit时写一定长度的日志功能失去。
Linux版：
#cd /opt/svn/repos/hooks
#mv pre-revprop-change.tmpl pre-revprop-change
#chmod 755 pre-revprop-change
无需重启svn服务，即...
[解决]CTRL: PTY read or GRE write failed - 更多技术 - 清泛网 - 专注C/C++及内核技术
...日志后发现是logwtmp版本的与pptpd版本不一致的原因导致的问题，于是打开/etc/pptpd.conf文件,找到
logwtmp
注释掉logwtmp后，重新启动pptpd，再次连接后一切恢复正常。
默认启用了proxyarp（在/etc/ppp/pptp-options中）功能，每次...
App Inventor 2 IoT 参考文档 · App Inventor 2 中文网
...及IO控制
【经典蓝牙】HC-05 经典蓝牙模块开发
【乱码问题】HC-05/BLE 蓝牙通信数据乱码？接收到的中文乱码？乱码的原理及解决思路
【物联网·云】App inventor + ESP8266：使用WIFI连接云控制
【硬件交互】APP INVENTOR硬件交互学...